Draft-rigging yoke.



J. F. O'CONNOR.

DRAFT RIGGING YOKE.

m v3 p on I 1 \M 1/ M w Patented Dec. 3, 1918.

INVENTOR. Jbkrofd/mor BY RWY ATTORNEY 1,286,733. finalisation 911mm Patent Patented Dec. 3, 1918.

' Application and august 19,1918. Serial m, 115,74s.

' walls 19*19 and downward] ofi'set lower Be it known -that I, Joins F. OCoNNoR, a wall 20. The upper wall 18 (if the hood is citizen of the United- States, residing at provided with a transversely extendin r hicago, in the county of Cook and State of shoulder or gib 21 and the inner faces of the IlllnOlS, have invented a certain ncwand side walls 19 are-provided with three in- 60 useful Improvement in Draft-Rigging wardly extended lugs 22 22 equally s aced Yokes, of whichthe followingis' a full, and terminating so as to provide cleai anco ence being had to. the accompanying drawlatter is inserted. The lugs 22 are spaced 1o ings, forming a part of this specification. to correspond to the vertical dimensions of 66 his invention-relates to improvements in the lugs 14*14 and extensions 13-13 on draft rigging yokes. f thedraw bar. four of such spaces being pro- One ob ectcf the invention is to provide vided on the inner face of each side wall a detachable connection between a draw bar of the yoke hood. The arrangement is such and a one piece yoke. g that the huttot' the draw barlO mav be in- 7 Another and more specific object of the inserted within the hood of the yoke the exvcntion is to provide a detachable connection tensions and lugs 13 and 14 of the draw ha 1' between a one piece yoke and a draw. bar, passing through the spaces betwe n the lugs assembled while the yoke is in position on" of the lugs 22 on the hood is clearly indi- 75 the car. cated in Fig. 3 and equals approximately In the drawing, forming a part of this half the length of the side wall of the hood. specification, Figure 1 is a sideelevation of The length or longitudinal dimensions of a. portion of a draw bar and a yoke showing the extensions 13 and lugs 14 on the draw 25 my improvements .in connection therewith; bar butt correspond substantially to the 8 ig. 2 is .a transverse, vertical section taken lengths ofv thelug's 22. After the draw bar substantially on the line 2-2 of Fig.1. as been inserted suificiently within the hood *ig. 3 is a horizontal sectional view 'taken of 'the yoke so that ertensions l3 and lugs 14 substantially on the line 3-3 of Fig. 1. pass beyond-the lugs 22 of the hood. the And Fig. 4 is a detail perspective of the rear raw bar butt is then raised or elevated so end ofthe draw bar. employed in the conthat the upper shoulder 13 will engage the struction illustrated in Figs. 1, 2, and 3. gib 21 and the lugs 14-14 and lower shoulig. 5 is a. view corresponding to Fig. 1, der 12 will engage behind the lugs 22-22 illustrating another embodiment of the in-' on the inner faces of the side walls of the 35 vention. AndFig. 6 is a'sectional view corhood. To hold the draw bar in this elevated responding to Fig. 2 and taken on the line position. I have provided a transversely-ex- -6 of Fig. 5. tending locking block 23 which is insertible in said drawing and referring to the structhrough recesses in the side walls of the ture illustrated in Figs. to 4.10 denotes the. hood. Said locking block 23 comprises a shank of a coupler or'draw bar, thesame helower horizontal supporting plate or portion 96 ing substantially rectangular at its rear or 24 and an upturned angular flange 25 which butt end and provided at the top and bottom engages the lower slmu'lder 12 of the draw with transversely extending shoulders 11 ar butt. On one end. the locking block 23 and 12. The shoulders 11 and 12 are exis provided with a depending lip 26 which 5 tended at their sides beyond the sides of the limits the transverse movement of the block 100 coupler butt, as indicated at l3-l3. Interrelatively to the hood. and at its other end, mediate the extended ends 13-13, the sides the block 23 is p rforated to receive the cotends connection with the drawing, is apparent 106 he extensions l'3-l3. The yoke A eomthat T have provided an ellicicnt and durable prises an upper arm 15, lower arm 16. rear arrangement for connecting the draw bar connecting portion 17, and a rectangular and yoke and one which may be readily as hood or h ad at the forward end. he hood semhlcd and disassembled without disturbor head comprises an upper wall 18, side ing the parts of the gear proper. 110

In the construction illustrated in Figs. 5 and (3, the draw bar 110 has the butt thereof formed of substantially pyramidal form with inclined sides 30-30 and horizontal base 31. The, yoke A. is provided at its forward end with a correspondingly shaped hood, the latter having inclined sidewalls 32-32 and downwardly oflt'set bottom; wall 33. Each of the side walls 32 is provided with an inwardly extended flange or gibi34 and across the top of the hood is ,a similar gib or flange 35 The size of the triangular shaped opening formed by the upper face of the lower wall of the hood and the edges of the gibs or flanges 34 correspond to the size and shape of the pyramidal butt of the coupler; In assembling the parts, the butt of the coupler is inserted in a low plane within the hood of the yoke. After the pyramidal butt has passed beyond the gibs or shoulders 34 and 35 of the hood, the draw bar butt is then elevated and itiis apparent that the shoulders formed at the front of the pyramidal buttwill engage behind the gibs or shoulders 34 and 35. Thedraw bar buttu is held in this elevated and operative position by means of a transversely extending key 36 which is insertedlaterally through suitable recesses in the side walls of the hood, which key engages the lmverhorizontal face of the draw barv butt. The key is held in'position by means of a cotter 37.,

1 claim:

1. .111 a device of the characterdescribed,

the combination with a yoke having parallel arms and a hooded forward end, all integrally formed of a draw bar having a butt insertible longitudinally within said opening, the inner faces of the side walls of said hood being provided'with asericsiof spaced inwardly extending shoulders and the draw bar butt being provided on the side faces thereof with correspondinglyspaced, laterally extended integral shoulders, the spacing being such that the shoulders of the draw bar butt are adapted to pass between those of the hood when the butt is inserted in one plane, said shoulders engaging when the butt is shifted vertically to another plane-relatively to the yoke.

- 2. In a device ofthe character described,

the combination with a'cast yoke having an integral hood at its forward end adapted to receive therewithin the rear end of a draw bar,said hood having integral, rearwardly facing shoulders on the inner faces of the sides of the hood, of a draw bar having the rear end thereof formed with integral forwardly facing shoulders on the sides thereof,

the "ertica'l interior height of the hood of the yoke being greater than the vertical height of the rear end of the draw bar and thereby adapting said rear end to be inserted within thenood when; the draw bar 1s ina plane lower than that normally occupied by it with respect to the yoke when in oper-v ative condition, said shoulders on the draw bar being arranged to pass between the shoulders of the hood when said draw bar is in said relatively lower plane, the shoulders of the draw bar and hood engaging when the draw bar is elevated within the hood,

' and detachable means arranged to engage 

